function(pre_project_config)

# Basic input sanitization
if(DEFINED TGT_BSP)
	if(${TGT_BSP} MATCHES "arm/raspberrypi" AND NOT ${OS_FSFW} MATCHES linux)
		message(STATUS "FSFW OSAL invalid for specified target BSP ${TGT_BSP}!")
		message(STATUS "Setting valid OS_FSFW: linux") 
		set(FSFW_OSAL "linux")
	endif()
endif()

if(FSFW_OSAL MATCHES linux AND TGT_BSP)
	if(${TGT_BSP} MATCHES "host/none")
	elseif(${TGT_BSP} MATCHES "arm/raspberrypi")
	   if(NOT SYSROOT_PATH)
    		if(NOT DEFINED ENV{LINUX_ROOTFS})
    			if(NOT LINUX_ROOTFS)
    				message(FATAL_ERROR "LINUX_ROOTFS must be set to Raspberry Pi rootfs location")
    			else()
    				set(ENV{LINUX_ROOTFS} "${LINUX_ROOTFS}")
    			endif()
    		else()	
    			message(STATUS 
    				"LINUX_ROOTFS from environmental variables used: "
    				"$ENV{LINUX_ROOTFS}"
    			)
    		endif()
        endif()
	
		if(NOT DEFINED ENV{RASPBERRY_VERSION})
			if(NOT RASPBERRY_VERSION)
				message(STATUS "No RASPBERRY_VERSION specified, setting to 4")
				set(RASPBERRY_VERSION "4" CACHE STRING "Raspberry Pi version")
			else()
				message(STATUS 
					"Setting RASPBERRY_VERSION to ${RASPBERRY_VERSION}"
				)
				set(RASPBERRY_VERSION 
					${RASPBERRY_VERSION} CACHE STRING "Raspberry Pi version"
				)
			set(ENV{RASPBERRY_VERSION} ${RASPBERRY_VERSION})
			endif()
		else()
			message(STATUS 
				"RASPBERRY_VERSION from environmental variables used: "
				"$ENV{RASPBERRY_VERSION}"
			)
		endif()

        if(LINUX_CROSS_COMPILE)
            set(CMAKE_TOOLCHAIN_FILE
                "${CMAKE_SCRIPT_PATH}/RPiCrossCompileConfig.cmake"
                PARENT_SCOPE
            )
        endif()
    elseif(${TGT_BSP} MATCHES "arm/beagleboneblack")
        if(LINUX_CROSS_COMPILE)
            set(CMAKE_TOOLCHAIN_FILE
                "${CMAKE_SCRIPT_PATH}/BBBCrossCompileConfig.cmake"
                PARENT_SCOPE
            )
        endif()
	else()
		message(WARNING "Target BSP (TGT_BSP) ${TGT_BSP} unknown!")
	endif()
endif()

endfunction()